Kyocera FS C5020N - Color LED Printer Service Manual page 75

Problem
(6)
The paper size is not
recognized as the
size set with the
paper size dial.
(7)
Paper misfeed dis-
play is not cancelled.
1 2
* : 16 ppm printer, * : 24 ppm printer
Causes
Defective cassette size
switch.
Defective sensor PWB
(A0001).
Defective harness (S02861)
between cassette size
switch and sensor PWB
(A0001) or poor contact of
the connector terminals.
Defective engine controller
PWB (A0004).
Defective registration sen-
sor.
Defective sensor PWB
(A0001).
Defective harness (S02849)
between engine controller
PWB (A0004) and sensor
PWB (A0001) or poor con-
tact of the connector termi-
nals.
Defective exit sensor.
Defective harness (S02849)
between fuser PWB (KP-
1 2
970* /A0003* ) and fuser
connector or poor contact
of the connector terminals.
Defective harness (S02853)
between power supply
PWB and fuser connector
or poor contact of the con-
nector terminals.
Defective engine controller
PWB (A0004).
Defective power supply
PWB.
Check procedures/corrective measures
Replace the cassette size switch.
Replace the sensor PWB (A0001).
Check the continuity of the harness (S02861), check the connec-
tion YC703 connector of sensor PWB (A0001), if there is trouble,
remedy or replace.
Replace the engine controller PWB (A0004). See page 1-6-41.
Replace the sensor PWB (A0001).
Replace the sensor PWB (A0001).
Check the continuity of the harness (S02849), check the connec-
tion YC2 connector of the engine controller PWB (A0004), check
the connection YC701 and YC702 connectors of the sensor PWB
(A0001), if there is trouble, remedy or replace.
Replace the fuser PWB (KP-970*
Check the continuity of the harness (S02849), check the connec-
tion YC691 connector of the fuser PWB (KP-970*
there is trouble, remedy or replace.
Check the continuity of the harness (S02853), check the connec-
tion YC902 connector of the power supply PWB, if there is trouble,
remedy or replace.
Replace the engine controller PWB (A0004). See page 1-6-41.
Replace the power supply PWB. See page 1-6-41.
1 2
/A0003* ).
1
/A0003*
2F3/2F4
2
), if
1-5-23